From: "Ludovic Courtès" <ludo@gnu.org>
To: 46967@debbugs.gnu.org
Subject: bug#46967: Connection reuse for substitutes breaks with gzip
Date: Thu, 11 Mar 2021 09:26:42 +0100 [thread overview]
Message-ID: <87eegmxfi5.fsf@gnu.org> (raw)
In-Reply-To: <87r1ko8o7v.fsf@gnu.org> ("Ludovic Courtès"'s message of "Tue, 09 Mar 2021 14:13:08 +0100")
Turns out GnuTLS has a buffer for the record layer attached to the
session. After the first GET in the main process, it looks like this:
--8<---------------cut here---------------start------------->8---
(gdb) p session->internals.record_buffer
$9 = {head = 0x7f7370, tail = 0x7f7370, length = 1, byte_length = 16219}
(gdb) p *session->internals.record_buffer->head
$10 = {next = 0x0, prev = 0x0, mark = 165, msg = {
data = 0x7f73c0 "HTTP/1.1 200 OK\r\nServer: nginx\r\nDate: Wed, 10 Mar 2021 21:23:44 GMT\r\nContent-Type: text/html\r\nContent-Length: 16397\r\nConnection: keep-alive\r\nAccept-Ranges: bytes\r\n\r\n<!DOCTYPE html><html lang=\"en\"><hea"..., size = 16384}, maximum_size = 18751, uhead_mark = 0, type = GNUTLS_APPLICATION_DATA, record_sequence = 1,
epoch = 0, htype = 72, handshake_sequence = 0}
(gdb) p *(&session->internals.record_buffer->head.msg.data[165])
$11 = 60 '<'
(gdb) p (&session->internals.record_buffer->head.msg.data[165])
$12 = (unsigned char *) 0x7f7465 "<!DOCTYPE html><html lang=\"en\"><head><title>GNU's advanced distro and transactional package manager — GNU Guix</title><meta charset=\"UTF-8\" /><meta name=\"keywords\" content=\"GNU, Linux, Unix, Free s"...
--8<---------------cut here---------------end--------------->8---
IOW, the main process hasn’t consumed the body of the HTTP response.
This is because with ‘filtered-port’, the input port is dumped from a
child process, not from the calling process.
To be continued…
Ludo’.
next prev parent reply other threads:[~2021-03-11 8:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-06 14:47 bug#46967: Connection reuse for substitutes breaks with gzip Ludovic Courtès
2021-03-09 11:07 ` Ludovic Courtès
2021-03-09 13:13 ` Ludovic Courtès
2021-03-11 8:26 ` Ludovic Courtès [this message]
2021-03-12 10:42 ` Ludovic Courtès
2021-03-12 15:08 ` Ludovic Courtès
2021-03-14 10:17 ` Ludovic Courtès
2021-03-16 18:34 ` Bonface Munyoki K.
2021-03-18 9:32 ` Ludovic Courtès
2021-03-10 1:28 ` Léo Le Bouter via Bug reports for GNU Guix
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87eegmxfi5.fsf@gnu.org \
--to=ludo@gnu.org \
--cc=46967@debbugs.gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/guix.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.